APA

Puri A. N., . (1970). Advanced examples in physics. : Atma Ram & Sons, New Delhi.

Chicago

Puri A N, . 1970. Advanced examples in physics. : Atma Ram & Sons, New Delhi.

Harvard

Puri A. N., . (1970). Advanced examples in physics. : Atma Ram & Sons, New Delhi.

MLA

Puri A N, . Advanced examples in physics. : Atma Ram & Sons, New Delhi. 1970.